This awesome picture by Carolyn Larabell was found here.
I went and bought glass slides for my microscope. I have read yeast cells were big, so I knew I had a chance with them. I diluted some yeast in water and at first the cells were moving wildly around. Then I put a top glass on and they laid totally close, almost in a pattern. They are very tiny and regular. The light shone some pretty colors through them, they are neat. I like them, I want a closer look. My microscope is x200. Bill Zhu asked me earlier and made me calculate how much it enhances.
I got lucky when I mentioned my discoveries in the chat. Janelle, a retired nurse, started giving me tips on what to to do.
Here is what she told me: Eli, scrape your finger and look at that under the scope…try a dry mount and a wet mount. Or the top of your hand or arm. You’ll be amazed at what you see!
Eli Fisker: Janelle, I did scrape my finger. I see cells
janelle: Very, very cool Eli
janelle: Now, you just need to stain them
Eli Fisker: can I use coffee?
janelle: Well, why not and try?
janelle: Never, heard of that before
I did see them a bit better with coffee.
Janelle asked if I had food dye, which was when I remembered the colored ink for refilling a printer and no printer for it. She said it should be usable, when diluted down.
20 minutes of chat later I discovered that dead yeast cells have another just as distinct pattern. They were clumped together in groups. The incandescent lamp was so hot that it had killed off my sample. My microscope speeds up time.
Another thought crossed my mind. I think I know what killed the lab rat. Curiosity.
I later asked Janelle, as I got doubts, if yeast cells really could move. I was thinking that perhaps my adding of the drop to the glass slide also added the motion. Janelle said that the light heating the water could also be a cause of the movement I saw, in addition to the water drop moving.
If you want to know more about yeast, here is the adult version by Andrew Murray. Janelle donated the beginners version.
Edit by Starryjess. Also a big thanks to Janelle for teaching me about what I could do with a microscope and giving me feedback on this post.